GHSA-vqgp-4jgj-5j64
Dashboard / Vulnerabilities / GHSA-vqgp-4jgj-5j64
GHSA-vqgp-4jgj-5j64
Summary: Py-EVM is vulnerable to arbitrary bytecode injection
Details: Py-EVM v0.2.0-alpha.33 allows attackers to make a vm.execute_bytecode call that triggers computation._stack.values with '"stack": [100, 100, 0]' where b'\x' was expected, resulting in an execution failure because of an invalid opcode. This is reportedly related to "smart contracts can be executed indefinitely without gas being paid."
References: https://nvd.nist.gov/vuln/detail/CVE-2018-18920, https://github.com/ethereum/py-evm/issues/1448, https://github.com/advisories/GHSA-vqgp-4jgj-5j64, https://github.com/ethereum/py-evm, https://github.com/pypa/advisory-database/tree/main/vulns/evm-py/PYSEC-2018-155.yaml, https://github.com/pypa/advisory-database/tree/main/vulns/py-evm/PYSEC-2018-96.yaml, https://twitter.com/AlexanderFisher/status/1060923428641878019, https://twitter.com/NettaLab/status/1060889400102383617, https://www.reddit.com/r/ethereum/comments/9vkk2g/netta_labs_claim_to_have_found_a_vulnerability_in/e9d3wyx
Affected packages
Package
Name: py-evm
Purl: pkg:pypi/py-evm
Affected ranges
Type: ECOSYSTEM
Events:
